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Writing null and alternative hypotheses

AP.STATS: VAR‑6 (EU), VAR‑6.D (LO), VAR‑6.D.1 (EK), VAR‑6.D.2 (EK), VAR‑6.D.3 (EK), VAR‑6.D.4 (EK), VAR‑6.D.5 (EK), VAR‑7 (EU), VAR‑7.C (LO), VAR‑7.C.1 (EK)

Problem

A ketchup company regularly receives large shipments of tomatoes. For each shipment that is received, a supervisor takes a random sample of 500 tomatoes to see what percent of the sample is bruised and performs a significance test. If the sample shows convincing evidence that more than 10, percent of the entire shipment of tomatoes is bruised, then they will request a new shipment of tomatoes.
Let p represent the proportion of tomatoes in a shipment that are bruised.
What are appropriate hypotheses for the company's significance test?
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